JP4264596B2 - Portable blood information acquisition device - Google Patents
Portable blood information acquisition device Download PDFInfo
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- JP4264596B2 JP4264596B2 JP09107998A JP9107998A JP4264596B2 JP 4264596 B2 JP4264596 B2 JP 4264596B2 JP 09107998 A JP09107998 A JP 09107998A JP 9107998 A JP9107998 A JP 9107998A JP 4264596 B2 JP4264596 B2 JP 4264596B2
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Description
【０００１】
【発明の属する技術分野】
本発明は携帯型血液情報取得装置に関し、特には血液中の色素タンパク質を精度良好に検出するための携帯型血液情報取得装置に関する。
【０００２】
【従来の技術】
血液中の色素タンパク質の濃度を測定するための血液検査計としては、血色素計やオキシメータがある。
血色素は、色素タンパク質のうちの一つであるヘモグロビン（以下、記号Ｈｂで表記する）の血液中における濃度として測定され、下記に示す測定方法がある。
【０００３】
Ｓａｈｌｉの血色素計を用いた場合には、採取した血液に少量の塩酸（ＨＣｌ）を加えて約１５分間３０℃〜６０℃まで加熱して溶血を起こし、血色素を塩酸ヘマチン（ヘミン）に変える。これに蒸留水を加えて希釈し、所定の有色液と比色することにより、Ｈｂの濃度を測定する。
Ｈａｄａｎの血色素計を用いた場合には、着色標準ガラスを用意しておき、顕微鏡にて塩酸を加えた採取血液に蒸留水を１滴づつ加えながら比色することにより、Ｈｂの濃度を測定する。
Ｐｈｉｌｉｐｓｅｎの血色素計を用いた場合には、数滴の採取血液に粉末資料を加えて還元溶血し、比色することによりＨｂの濃度を測定する。
また、上記の他にも、光電比色計を適用した血色素計を用いる場合もある。この血色素計は、光電池を用いて光量を電気量に変換することにより呈色液、すなわち採取血液におけるＨｂの濃度を精密に測定する装置である。
【０００４】
また、オキシメータは、血液中におけるＨｂの酸素飽和度を測定するための装置であり、赤色発光素子からなる光源と、この光源と対向して設けられた受光部と、この受光部で受光した光強度を表示する表示部とで構成されている。そして、光源と受光部との間に指を差し入れた状態で光源から赤色光を照射し、指を透過して受光部で受光された赤色光の光強度をＨｂの酸素飽和度として測定する。上記オキシメータは、肺のガス交換機能を直接的にモニターする重要な役割を持ち、もし、測定者の酸素飽和度が健常者の酸素飽和度よりも所定量以上低い場合には、酸素を呼吸器に直接供給する等の処置が施される。また、測定された酸素飽和度によって、供給する酸素の圧力（流量）が決定される。
【０００５】
【発明が解決しようとする課題】
ところが、上記血液検査計のうち、Ｓａｈｌｉの血色素計、Ｈａｄａｎの血色素計及びＰｈｉｌｉｐｓｅｎの血色素計は、いずれも測定に時間がかかり、かつ測定者の比色の主観が判断の要素に加わるため客観的な測定ができない。
また、光電比色計を適用した血色素計では、客観的な定量を行うことができるものの装置が高価である。
【０００６】
さらに、Ｈｂに酸素が結合してなるオキシヘモグロビン（以下、記号ＨｂＯ2 で表記する）の吸収極大は５７５ｎｍ、５４０ｎｍ及び４１５ｎｍの青緑色帯域の波長の光である。ところが、上記オキシメータでは赤色発光素子から発せられる赤色帯域の光が測定光として用いられており、上記ＨｂＯ2 に対する測定光の吸収効率が悪い。このため、検体となる指の差し込み方によって、測定数値が大幅に変動し、信頼性の高い測定結果を得ることができない。
【０００７】
そこで本発明は、より安価で測定の再現性に優れた結果を得ることができる携帯型血液情報取得装置を提供することを目的とする。
【０００８】
【課題を解決するための手段】
上記目的を達成するための本発明の携帯型血液情報取得装置は、一端側を検体が挿入される開口端とし他端側を当接端とした筒状部と、この筒状部に内設された光源と、受光面を前記光源側に向けた状態で前記筒状部に内設された受光部と、この筒状部における開口端側に設けた遮光部とを備えている。そして、受光部で受光した透過光強度データと、予め取得した透過光強度データとの比較値を算出する。
【０００９】
上記携帯型血液情報取得装置の光源からは紫外から緑色の帯域における所定波長の測定光が発せられるため、上記所定波長として色素タンパク質の大部分を占めるＨｂの吸収極大波長（５５５ｎｍ、４３０ｎｍ）やＨｂＯ2 の吸収極大波長（５７５ｎｍ、５４０ｎｍ、４１５ｎｍ）が設定される。この結果、ＨｂやＨｂＯ2 に対して吸収効率が良好な測定光が照射されることになり、測定対象物における測定光の吸収効率が高くなり、精度の高い定量が行われる。また、光源を構成する半導体素子にレーザダイオードを用いた場合には、検体を透過できる程度の強度を有する測定光が得られる。さらに、複数の半導体素子からなる光源を設けた場合には、２種類の色素タンパク質、例えばＨｂとＨｂＯ2 との定量が行われる。
【００１０】
【発明の実施の形態】
以下、本発明の携帯型血液情報取得装置として血液検査計の実施の形態を図面に基づいて説明する。
【００１１】
（第１実施形態）
図１は、請求項１及び請求項２記載の本発明を適用した血液検査計の一実施形態を示す図である。この図に示す血液検査計１は、暗箱１１、暗箱１１内に設けられた光源１２及び受光部１３、受光部１３に接続された表示部１４を具備している。
【００１２】
光源１２及び受光部１３が内設された暗箱１１は、一端が開口し他端が閉じられた筒状に形成されている。そして、例えば測定者（検査検体）の指Ａを開口端側から当該暗箱１１の内部に挿入した場合に、指Ａの先端が他端側に当接する程度の長さを有している。また、暗箱１１の開口端の内壁には、指Ａが挿入された状態の暗箱１１内に、開口端側から光が浸入することを防止するための暗幕１１ａが設けられている。
【００１３】
また、光源１２は、暗箱１１の円筒形中心軸に向かって測定光ｈを発する状態で、暗箱１１の内側壁に設けられている。この光源１２は、紫外から緑色の帯域における所定波長の光を発する半導体素子ａからなるものであり、そのなかでも特には測定目的とする色素タンパク質の吸収極大を示す波長の光を測定光ｈとして発する半導体素子を用いる。具体的な一例としては、ＨｂＯ2 の吸収極大を示す波長、すなわち５７５ｎｍ、５４０ｎｍ、４１５ｎｍのうちの一つの波長を有する光を発する半導体素子、またはＨｂの吸収極大を示す波長、すなわち５５５ｎｍ、４３０ｎｍのうちの一つの波長を有する光を発する半導体素子を適用する。そして、このような半導体素子として、発光ダイオードやレーザダイオードを好適に用いることができる。
【００１４】
また、上記受光部１３は、暗箱１１の内側壁において、暗箱１１の円筒形中心軸を挟んで上記光源１２と対向する位置に設けられている。光源１２と受光部１３との間隔は、検査検体の指Ａがこれらの間に挿入可能な程度に設定される。この受光部１３は、光電管や光電池等のように受光した光を電気信号に光電変換するものからなり、受光面ｂを光源１２側に向けた状態で配置される。
【００１５】
また、上記表示部１４は、暗箱１１の外壁に設けられており、例えば増幅回路を備えた指示計器からなる。この表示部１４には、受光部１３で光電変換された電気信号の強度が表示される。
【００１６】
上記構成の血液検査計を用いた血液検査は、以下のように行う。
先ず、暗箱１１の開口端から当該暗箱１１内に検査検体の指Ａを挿入する。この際、指Ａが確実に光源１２と受光部１３との間に挿入されるように、暗箱１１内の他端に指Ａを当接させる。次に、光源１２から測定光ｈを照射する。この際、光源１２から照射された測定光ｈによって検査検体の指Ａや被検査物である色素タンパク質（すなわちＨｂやＨｂＯ2 ）に破損が生じないように、測定光ｈの出力を調整する。
【００１７】
以上のようにして指Ａに測定光ｈを照射すると、測定光ｈのうち検体で吸収されることなく透過した光が受光部１３で受光され、その強度（すなわち透過光の強度）が表示部１４に表示される。この際、測定光ｈは、ＨｂやＨｂＯ2 の吸収極大を示す波長を有しているため、検査検体の血液中におけるＨｂやＨｂＯ2 の濃度が高い程、検体を透過して受光部１３で受光される光強度が弱くなる。
【００１８】
そして、健康な人を標準検体とし、予めこの標準検体に関して上記と同様に光強度のデータを採取しておき、その値と上記検査検体に関して測定した値との比較値を、検査検体におけるＨｂやＨｂＯ2 の検査値として算出する。例えば、標準検体で測定された透過光の光強度から検査検体の吸光度を求めてその値を１００とした場合に、検査検体で測定された透過光の光強度から求めた吸光度の割合を、当該検査検体の検査値として算出する。
【００１９】
上記構成の血液検査計では、Ｈｂの吸収極大波長（５５５ｎｍ、４３０ｎｍ）を有する光またはＨｂＯ2 の吸収極大波長（５７５ｎｍ、５４０ｎｍ、４１５ｎｍ）を有する光が測定光ｈとして光源１２から発せられる。このため、測定対象物となるＨｂまたはＨｂＯ2 による測定光ｈの吸収効率が高くなり、精度の高い定量が行われる。また、光源１２は、半導体素子ａからなるものであるため構成が単純で小型化が容易である。しかも、この半導体素子ａにレーザダイオードを用いることで、検体を透過できる程度の強度を有する測定光ｈを用いて血液検査を行うことが可能になる。
【００２０】
（第２実施形態）
図２は、請求項３記載の発明を適用した血液検査計の一実施形態を示す図である。この図に示す血液検査計２と、上記図１を用いて説明した第１実施形態の血液検査計との異なることろは、光源２２及び受光部２３の構成にある。
【００２１】
すなわち、この図に示す血液検査計２の光源２２は、複数の半導体素子ａ1 ，ａ2 からなるものである。各半導体素子ａ1 ，ａ2 は、測定目的とする複数の色素タンパク質の吸収極大を示す波長の光を測定光ｈ1 ，ｈ2 として発するものである。具体的な一例としては、ＨｂＯ2 の吸収極大を示す波長、すなわち５７５ｎｍ、５４０ｎｍ、４１５ｎｍのうちの一つの波長を有する光を発する半導体素子ａ1 、及びＨｂの吸収極大を示す波長、すなわち５５５ｎｍ、４３０ｎｍのうちの一つの波長を有する光を発する半導体素子ａ2 である。そして、このような半導体素子として、発光ダイオードやレーザダイオードを好適に用いることができる。
【００２２】
そして、受光部２３は、各半導体素子ａ1 ，ａ2 に対向する複数の受光面ｂ，ｂを有しており、各半導体素子ａ1 ，ａ2 から照射された測定光ｈ1 ，ｈ2 がそれぞれ個別に受光されるように構成されている。
また、表示部２４は、例えば各受光面ｂ，ｂで受光された透過光の強度をそれぞれ個別に表示できるように構成されている。
【００２３】
上記構成の血液検査計によれば、吸収極大が異なる２種類の色素タンパク質、例えばＨｂとＨｂＯ2 との定量を同時に行うことができる。このため、例えば、ＨｂとＨｂＯ2 とを合わせた合計のヘモグロビン量を求めることができる。
【００２４】
尚、上記合計のヘモグロビン量を求める際にも、健康な人を標準検体とし、予めこの標準検体に関して光強度のデータを採取しておき、その値と上記検査検体に関して測定した値との比較値を、検査検体における合計のヘモグロビン量として算出することする。
【００２５】
【発明の効果】
以上説明したように本発明の携帯型血液情報取得装置によれば、光源と受光部とが内設される筒状部において、検体（指）の挿入側である開口端側に遮光部を設けた構成であり、精度の高い血液情報を取得することが可能になる。
【図面の簡単な説明】
【図１】第１実施形態の血液検査計の構成図である。
【図２】第２実施形態の血液検査計の構成図である。
【符号の説明】
１，２…血液検査計、１１…暗箱、１２，２２…光源、１３，２３…受光部、１４，２４…表示部、ａ，ａ1 ，ａ2 …半導体素子、ｂ…受光面、ｈ，ｈ1 ，ｈ2 …測定光[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable blood information acquisition apparatus, and more particularly to a portable blood information acquisition apparatus for accurately detecting chromoproteins in blood.
[0002]
[Prior art]
Examples of blood test meters for measuring the concentration of chromoprotein in the blood include a hemochromimeter and an oximeter.
The hemoglobin is measured as the concentration of hemoglobin (hereinafter referred to as symbol Hb), which is one of the chromoproteins, in the blood, and there is a measurement method described below.
[0003]
When using a Sahli hemochromatometer, a small amount of hydrochloric acid (HCl) is added to the collected blood and heated to 30 ° C. to 60 ° C. for about 15 minutes to cause hemolysis, and the hemoglobin is changed to hematin hydrochloride (hemin). Distilled water is added to the solution to dilute it, and colorimetrically with a predetermined colored liquid, thereby measuring the concentration of Hb.
When a Hadan hemochromatometer is used, a colored standard glass is prepared, and the concentration of Hb is measured by colorimetrically adding distilled water to the collected blood to which hydrochloric acid has been added one by one with a microscope. .
When a Philipsen hemochromatometer is used, the concentration of Hb is measured by adding a powder sample to a few drops of collected blood, reducing hemolysis, and colorimetrically.
In addition to the above, a hemochromatometer to which a photoelectric colorimeter is applied may be used. This hemochromatometer is a device that precisely measures the concentration of Hb in a colored solution, that is, collected blood, by converting the amount of light into an electrical quantity using a photovoltaic cell.
[0004]
The oximeter is a device for measuring the oxygen saturation level of Hb in blood, and includes a light source composed of a red light emitting element, a light receiving unit provided opposite to the light source, and light received by the light receiving unit. And a display unit for displaying light intensity. Then, red light is emitted from the light source with a finger inserted between the light source and the light receiving unit, and the light intensity of the red light transmitted through the finger and received by the light receiving unit is measured as the oxygen saturation of Hb. The oximeter plays an important role in directly monitoring the gas exchange function of the lungs. If the oxygen saturation level of the measurer is lower than the oxygen saturation level of a healthy person by a predetermined amount or more, the oximeter breathes oxygen. Treatment such as supplying directly to the vessel. Further, the pressure (flow rate) of oxygen to be supplied is determined by the measured oxygen saturation.
[0005]
[Problems to be solved by the invention]
However, among the above blood test meters, the Sahli hemochromator, Hadan hemochromator and Philipsen hemochromometer all take time to measure, and the colorimetric subjectivity of the measurer is an objective factor for judgment. Can not be measured properly.
In addition, in a hemochromimeter to which a photoelectric colorimeter is applied, an apparatus capable of objective quantification is expensive.
[0006]
Furthermore, the absorption maximum of oxyhemoglobin (hereinafter referred to as the symbol HbO 2 ) formed by binding oxygen to Hb is light in the blue-green band of 575 nm, 540 nm, and 415 nm. However, in the oximeter, red band light emitted from the red light emitting element is used as measurement light, and the absorption efficiency of the measurement light with respect to the HbO 2 is poor. For this reason, the measured numerical value varies greatly depending on how to insert a finger as a specimen, and a highly reliable measurement result cannot be obtained.
[0007]
Therefore, an object of the present invention is to provide a portable blood information acquisition apparatus that can obtain a result that is cheaper and has excellent measurement reproducibility.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a portable blood information acquisition apparatus according to the present invention comprises a cylindrical portion having one end side as an opening end into which a sample is inserted and the other end side as a contact end, and an internal portion in the cylindrical portion. And a light receiving portion provided in the cylindrical portion with the light receiving surface facing the light source side, and a light shielding portion provided on the opening end side of the cylindrical portion. Then, a comparison value between the transmitted light intensity data received by the light receiving unit and the transmitted light intensity data acquired in advance is calculated.
[0009]
Since the light source of the portable blood information acquisition apparatus emits measurement light having a predetermined wavelength in the ultraviolet to green band, the absorption maximum wavelength (555 nm, 430 nm) of Hb occupying most of the chromoprotein as the predetermined wavelength or HbO 2. Absorption maximum wavelength (575 nm, 540 nm, 415 nm) is set. As a result, measurement light having a good absorption efficiency is irradiated to Hb and HbO2, and the measurement light absorption efficiency of the measurement object is increased, and highly accurate quantification is performed. In addition, when a laser diode is used as the semiconductor element that constitutes the light source, measurement light having an intensity that can pass through the specimen can be obtained. Further, when a light source comprising a plurality of semiconductor elements is provided, two types of chromoproteins, for example, Hb and HbO2 are quantified.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a blood test meter as a portable blood information acquisition device of the present invention will be described with reference to the drawings.
[0011]
(First embodiment)
FIG. 1 is a view showing an embodiment of a blood test meter to which the present invention according to
[0012]
The dark box 11 in which the light source 12 and the light receiving unit 13 are installed is formed in a cylindrical shape having one end opened and the other end closed. For example, when the finger A of the measurer (test sample) is inserted into the dark box 11 from the opening end side, the finger A has a length that contacts the other end side. A dark screen 11a is provided on the inner wall of the opening end of the dark box 11 to prevent light from entering the dark box 11 with the finger A inserted therein from the opening end side.
[0013]
The light source 12 is provided on the inner wall of the dark box 11 in a state in which the measurement light h is emitted toward the cylindrical central axis of the dark box 11. The light source 12 is composed of a semiconductor element a that emits light of a predetermined wavelength in the ultraviolet to green band, and in particular, light having a wavelength that indicates the absorption maximum of a chromoprotein to be measured is used as measurement light h. A semiconductor element that emits light is used. As a specific example, a wavelength indicating the absorption maximum of HbO 2 , that is, a semiconductor element that emits light having one of 575 nm, 540 nm, and 415 nm, or a wavelength indicating the absorption maximum of Hb, that is, 555 nm and 430 nm. A semiconductor element that emits light having one of the wavelengths is applied. As such a semiconductor element, a light emitting diode or a laser diode can be suitably used.
[0014]
The light receiving unit 13 is provided on the inner wall of the dark box 11 at a position facing the light source 12 with the cylindrical central axis of the dark box 11 interposed therebetween. The interval between the light source 12 and the light receiving unit 13 is set to such an extent that the finger A of the test sample can be inserted between them. The light receiving unit 13 is configured to photoelectrically convert received light into an electric signal, such as a photoelectric tube or a photocell, and is arranged with the light receiving surface b facing the light source 12 side.
[0015]
The display unit 14 is provided on the outer wall of the dark box 11, and is composed of, for example, an indicating instrument equipped with an amplifier circuit. The display unit 14 displays the intensity of the electrical signal photoelectrically converted by the light receiving unit 13.
[0016]
A blood test using the blood test meter having the above-described configuration is performed as follows.
First, the finger A of the test sample is inserted into the dark box 11 from the open end of the dark box 11. At this time, the finger A is brought into contact with the other end in the dark box 11 so that the finger A is surely inserted between the light source 12 and the light receiving unit 13. Next, the measurement light h is emitted from the light source 12. At this time, the output of the measurement light h is adjusted so that the measurement light h irradiated from the light source 12 does not damage the finger A of the test specimen or the chromoprotein (that is, Hb or HbO 2 ) that is the test object.
[0017]
When the measurement light h is irradiated onto the finger A as described above, the light that has passed through the measurement light h without being absorbed by the specimen is received by the light receiving unit 13, and the intensity (that is, the intensity of the transmitted light) is displayed on the display unit. 14 is displayed. At this time, the measurement light h, since it has a wavelength showing an absorption maximum of Hb and HbO 2, the higher the concentration of Hb and HbO 2 in blood of the test sample, in the light receiving section 13 is transmitted through the specimen The intensity of received light is weakened.
[0018]
Then, a healthy person is used as a standard sample, and light intensity data is collected in advance for the standard sample in the same manner as described above, and the comparison value between the value and the value measured for the test sample is determined as Hb or Calculated as the inspection value of HbO 2 . For example, when the absorbance of the test sample is obtained from the light intensity of the transmitted light measured with the standard sample and the value is 100, the ratio of the absorbance obtained from the light intensity of the transmitted light measured with the test sample is Calculated as the test value of the test sample.
[0019]
In the blood test meter having the above configuration, light having the maximum absorption wavelength of Hb (555 nm, 430 nm) or light having the maximum absorption wavelength of HbO 2 (575 nm, 540 nm, 415 nm) is emitted from the light source 12 as the measurement light h. For this reason, the absorption efficiency of the measurement light h by Hb or HbO 2 to be measured becomes high, and highly accurate quantification is performed. Further, since the light source 12 is composed of the semiconductor element a, the configuration is simple and the size can be easily reduced. In addition, by using a laser diode for the semiconductor element a, it is possible to perform a blood test using the measurement light h having an intensity that can pass through the specimen.
[0020]
(Second Embodiment)
FIG. 2 is a view showing an embodiment of a blood test meter to which the invention according to claim 3 is applied. The difference between the blood test meter 2 shown in this figure and the blood test meter according to the first embodiment described with reference to FIG. 1 is the configuration of the light source 22 and the light receiving unit 23.
[0021]
That is, the light source 22 of the blood test meter 2 shown in this figure is composed of a plurality of semiconductor elements a 1 and a 2 . Each of the semiconductor elements a 1 and a 2 emits light having a wavelength indicating the absorption maximum of a plurality of chromoproteins to be measured as measurement light h 1 and h 2 . As a specific example, the wavelength indicating the absorption maximum of HbO 2 , that is, the semiconductor element a 1 that emits light having one of 575 nm, 540 nm, and 415 nm, and the wavelength indicating the absorption maximum of Hb, that is, 555 nm, The semiconductor element a 2 emits light having one wavelength of 430 nm. As such a semiconductor element, a light emitting diode or a laser diode can be suitably used.
[0022]
Then, the light receiving unit 23, the semiconductor elements a 1, a plurality of light receiving surfaces b opposed to a 2, has a b, the measurement light h 1 emitted from the semiconductor elements a 1, a 2, h 2 Are individually received.
Moreover, the display part 24 is comprised so that the intensity | strength of the transmitted light received by each light-receiving surface b and b can each be displayed separately, for example.
[0023]
According to the blood test meter having the above configuration, two types of chromoproteins having different absorption maximums, for example, Hb and HbO 2 can be quantified simultaneously. For this reason, for example, the total amount of hemoglobin combining Hb and HbO 2 can be obtained.
[0024]
When obtaining the total amount of hemoglobin, a healthy person is used as a standard sample, light intensity data is collected in advance for this standard sample, and a comparison value between the value and the value measured for the test sample is obtained. Is calculated as the total amount of hemoglobin in the test sample.
[0025]
【The invention's effect】
As described above, according to the portable blood information acquisition device of the present invention, in the cylindrical part in which the light source and the light receiving part are provided, the light shielding part is provided on the opening end side that is the insertion side of the specimen (finger). It is possible to obtain blood information with high accuracy.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a blood test meter according to a first embodiment.
FIG. 2 is a configuration diagram of a blood test meter according to a second embodiment.
[Explanation of symbols]
1,2 ... blood test meter, 11 ... dark box, 12, 22 ... light source, 13, 23 ... receiving unit, 14, 24 ... display unit, a, a 1, a 2 ... semiconductor device, b ... light-receiving surface, h, h 1 , h 2 ... measurement light
Claims (6)
ヘモグロビンの吸収波長を有する光を発する半導体素子からなり、前記筒状部に内設された光源と、
受光面を前記光源側に向けた状態で前記筒状部に内設された受光部と、
前記筒状部における開口端側に設けた遮光部とを備え、
前記受光部で受光した前記検体の透過光強度データと、予め取得しておいた標準検体の透過光強度データとの比較値を算出する
ことを特徴する携帯型血液情報取得装置。A cylindrical portion having one end side as an opening end into which a specimen is inserted and the other end side as a contact end;
Consists semiconductor device that emits light having an absorption wavelength of hemoglobin, a light source internally provided in the cylindrical portion,
A light receiving portion provided in the cylindrical portion with a light receiving surface facing the light source,
A light shielding portion provided on the opening end side of the cylindrical portion,
A portable blood information acquisition apparatus, wherein a comparison value between the transmitted light intensity data of the specimen received by the light receiving unit and the transmitted light intensity data of a standard specimen acquired in advance is calculated.
前記遮光部は、前記受光部への光の浸入を防止するためのものである
ことを特徴とする携帯型血液情報取得装置。In the portable blood information acquisition device according to claim 1,
The light shielding unit, portable blood information acquisition device, characterized in that it is intended to prevent the entry of light into the light receiving portion.
前記遮光部は、前記開口端より挿入される検体と接触する
ことを特徴とする携帯型血液情報取得装置。The portable blood information acquisition device according to claim 1,
The light shielding unit, portable blood information acquisition apparatus characterized by contacting the sample to be inserted from the open end.
前記光源は血液中に含まれるヘモグロビンの吸収極大を示す波長の光を発する
ことを特徴とする携帯型血液情報取得装置。The portable blood information acquisition device according to claim 1,
The light source portable blood information acquisition apparatus characterized by emitting light of a wavelength showing an absorption maximum of hemoglobin contained in blood.
前記受光部で受光した光強度を表示する表示部を有する
ことを特徴とする携帯型血液情報取得装置。The portable blood information acquisition device according to claim 1,
A portable blood information acquisition apparatus comprising: a display unit that displays light intensity received by the light receiving unit.
複数の前記光源と、複数の前記光源それぞれに対応する複数の前記受光面を有する
ことを特徴とする携帯型血液情報取得装置。The portable blood information acquisition device according to claim 1,
A portable blood information acquisition apparatus, comprising: a plurality of light sources; and a plurality of light receiving surfaces corresponding to the plurality of light sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09107998A JP4264596B2 (en) | 1998-04-03 | 1998-04-03 | Portable blood information acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09107998A JP4264596B2 (en) | 1998-04-03 | 1998-04-03 | Portable blood information acquisition device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008305937A Division JP4502060B2 (en) | 2008-12-01 | 2008-12-01 | Blood information acquisition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11287806A JPH11287806A (en) | 1999-10-19 |
| JP4264596B2 true JP4264596B2 (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09107998A Expired - Lifetime JP4264596B2 (en) | 1998-04-03 | 1998-04-03 | Portable blood information acquisition device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007151962A (en) * | 2005-12-07 | 2007-06-21 | Matsushita Electric Works Ltd | Biological component measuring instrument |
| CN102293653B (en) * | 2010-06-28 | 2013-05-01 | 深圳市国基科技有限公司 | Coupling inspection head and manufacturing method thereof |
| JP2013103094A (en) * | 2011-11-16 | 2013-05-30 | Sony Corp | Measurement device, measurement method, program, and recording medium |
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1998
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| JPH11287806A (en) | 1999-10-19 |
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